Mindy McCready‘s two children — Zander, 7, and Zayne, 19 months — trudge on with the support of relatives, 10 months after their mother’s tragic suicide, and we’ve got the details for you right here on RadarOnline.com.

At the time of the singer’s death, both kids were in foster care, but nearly a year later, they have both been sent to live with family: Zayne with the Florida-based family of the late music producer Wilson; and Zander with his father, musician Billy McKnight, who received full custody of the boy in July.

“We tell him she’s in heaven,” McKnight told People of how he and his wife, Corey Rena, cope with the boy’s sad backstory. “When he’s old enough to understand, I’ll explain that she got sick and wasn’t the person she once was only speak the highest of her.”

“Zander has been through a lot, but he’s a tough kid.”

As a condition of him getting custody, McKnight, who has past issues linked to domestic violence and drugs, is prone to drug tests.

“I fought my demons very hard for the sake of Xander — and myself,” McKnight said.